|
Tower number
(and tower type) |
SZ2 | Application scope | 220KV line |
| Design condition | Nominal height(m) | steel weight(kg) | |
| Conductor type | 2*LGJ300/25 | ||
| Earth wire type | GJ-50 | ||
| Max.wind speed(m/s) | 25 | ||
| Max.ice(mm) | 5 | ||
| Horizontal span(m) | 650 | ||
| Vertical span(m) | 1400 | ||
| Angle | |||
| Steel material | Anti-push, bending and press strength (N/mm2) |
Anti-shear strength
(N/mm2) |
|
| Grade | Thickness or diameter (mm) | ||
|
Q235
Steel |
≤16 | 215 | 125 |
| >16~40 | 205 | 120 | |
| >40~60 | 200 | 115 | |
| >60~100 | 190 | 110 | |
|
Q345
Steel |
≤16 | 310 | 180 |
| >16~35 | 295 | 170 | |
| >35~50 | 265 | 155 | |
| >50~100 | 250 | 145 | |
|
Q420
Steel |
≤16 | 380 | 220 |
| >16~35 | 360 | 210 | |
| >35~50 | 340 | 195 | |
| >50~100 | 325 | 185 | |
|
Q460
Steel |
≤16 | 415 | 240 |
| >16~35 | 395 | 230 | |
| >35~50 | 380 | 220 | |
| >50~100 | 360 | 210 | |
| Item | Grade | Anti-push strength (N/mm2) | Anti-shear strength (N/mm2) |
|
Fastener
for towers |
4.8 | 200 | 170 |
| 5.8 | 240 | 210 | |
| 6.8 | 300 | 240 | |
| 8.8 | 400 | 300 | |
|
Anchor
bolts |
Q235 | 160 | / |
| Chinese 35 steel | 190 | / | |
| Chinese 45 steel | 215 | / |